<div dir="ltr">Hi Harrison,<div><br></div><div>I cannot say that I've every tried that but note that the documentation does suggest (or at least imply) it is possible. So I tried and failed. I've forwarded your message to the developers mailing list. Hopefully somebody will know the answer?</div><div><br></div><div>Cheers</div><div>Paul</div><div><br></div></div><br><div class="gmail_quote gmail_quote_container"><div dir="ltr" class="gmail_attr">On Wed, Jul 1, 2026 at 2:44 PM Harrison Laurent via users <<a href="mailto:users@lists.sasview.org">users@lists.sasview.org</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div class="msg-3577964305272865985">




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Hello,</div>
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I hope you are well. I am currently trying to build a reasonably complex model within sasview and have gone to the guide on how to manage this. I see in the documentation (SasView-6.1.3/sas/docs/user/qtgui/Perspectives/Fitting/fitting_help.html) that to achieve
 this one creates a 'simple' model combining two established models, then opens the model in the model editor. One can then add/multiply several different functions together by editing the text after 'load_model_info'.</div>
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My question is how do I account for multiplying several summed models by a single other model, as brackets seemingly cannot be used. AKA how do I achieve the following sort of functions:</div>
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(sphere + gaussian_peak + sphere)*user_defined_fractal_model</div>
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((sphere + gaussian_peak) + sphere)*user_defined_fractal_model</div>
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((sphere  + sphere)*user_defined_fractal_model) + gaussian_peak</div>
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Any insight you have would be extremely helpful. Thank you so much.</div>
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All the best,</div>
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Harrison Laurent</div>
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